26.12.2007 / U4 Net Fares have been updated in Abacus FareX and Amadeus FareXpert

20.12.2007 / U4 Flights have been opened for selling in Topas

14.11.2007 / U4 flights open for selling in Abacus

BSP agencies in Cambodia,Thailand,South Korea may use U4 Pulished and Negotiated Fares.

06.08.2007 / U4 Flights open for selling in Amadeus

BSP agencies may use U4 Nego Fares for Net Remit Scheme

01.08.2007 / U4 Flights open for selling in TIKsystem